9.2.1 Overview of replacing converter components
Permissible replacement of components
In the event of a long-term function fault, you must replace the Power Module or Control Unit.
The inverter's Power Module and Control Unit can be replaced independently of each other.
In the following cases you will need to replace the inverter:
Replacing the Power Module Replacing the Control Unit
Replacement:
● Same type
● Same power rating
Replacement:
● Same type
● Same frame size
●
Higher
power rating
Replacement:
● Same type
● Same firmware version
Replacement:
● Same type
●
Higher
firmware version
(e.g. replace FW V4.2 by
FW V4.3)
Power Module and motor
must be adapted to one an‐
other (ratio of motor and Pow‐
er Module rated power > 1/4)
After replacing the Control Unit, you must restore the inver‐
ter's settings.
WARNING
Unexpected machine movements caused by incorrect/inappropriate inverter settings
Replacing inverters of different types can result in incomplete or incorrect/inappropriate
inverter settings. As a consequence, unexpected machine motion, e.g. speed oscillation,
overspeed or incorrect direction of rotation. Unexpected machine motion can result in death,
injury or material damage.
● In all cases that are not permitted according to the table above, recommission the drive
after replacing an inverter.
Special issue relating to communication via PROFINET: Device replacement without removable data
storage medium
The inverter supports the PROFINET functionality, replacing the device without data storage
medium. After replacing the Control Unit, the inverter is automatically assigned its device name
from the IO controller.
Independent of this, after replacing the inverter, you must transfer the settings of the old inverter
to the new inverter.
Corrective maintenance
9.2 Replacing inverter components
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 417
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